The sun son industries ltd is engaged on digital sound and video technology development and products manufacturing sales comprehensive enterprise. the company with many years of digital video and audio techniques, and the major figures in the sound and video compression technology in the field of application. the enterprise development and growing. the company's products has gradually been involved in the mp3 player, speakers field and in it industry to achieve good results. the company's main products are mp3, mp4 mp5, and the speakers, hamburg, waterproof mp3 for amps